RFID printer for single hang tag

Abstract

The utility model relates to an RFID (Radio Frequency Identification Device) printer for a single hang tag, which comprises a thermal transfer ribbon printer and an RFID reader-writer, a hang tag stacking and conveying device is arranged in a hang tag stacking area, a plurality of hang tags are stacked on a conveying surface of a conveying belt in the hang tag stacking and conveying device, and an RFID tag is embedded in each hang tag; the thermal transfer ribbon printing head can conduct online thermal transfer printing on passing hangtags through a walking thermal transfer ribbon, a hangtag one-by-one output device is arranged at the output end of the hangtag stacking and conveying device, and an RFID read-write antenna is installed in the hangtag printing area and located between the hangtag one-by-one output device and the thermal transfer ribbon printing head. And the RFID reader-writer can write data into the hang tags which pass one by one through the RFID read-write antenna. The system has the advantages that firstly, the printer can perform online printing and data entry on a single hang tag embedded with an RFID tag at the same time, the printer can ensure that the single hang tag is printed one by one and data is entered one by one, and the hang tag is not easy to be stuck; and thirdly, the printer can print hang tags with different thicknesses, and is good in printing applicability and convenient to adjust.

Description

Technical Field

[0001] This utility model belongs to the field of RFID printer technology, specifically relating to an RFID printer for single tags. Background Technology

[0002] CN 211054710 U, entitled "Barcode Printer for Single Hang Tag", includes a printer body (1), a cavity (2) on the printer body (1), a rectangular through hole (3) on one side inner wall of the cavity (2), a movable seat (4) inside the cavity (2), a drive shaft (5) rotatably mounted on the movable seat (4), one end of the drive shaft (5) passing through the rectangular through hole (3), a spring (6) fixedly mounted at the bottom of the movable seat (4), the bottom end of the spring (6) fixedly mounted on the bottom inner wall of the cavity (2), a sliding groove (7) on both sides inner walls of the cavity (2), and a sliding plate fixedly mounted on both sides of the movable seat (4). (8) The two sliding plates (8) are slidably installed in the corresponding sliding grooves (7) on opposite sides. The cavity (2) has a mounting hole (9) on its top inner wall. A rotating shaft (10) is rotatably installed in the mounting hole (9). The top end of the rotating shaft (10) extends outside the mounting hole (9). A threaded groove (11) is opened at the bottom end of the rotating shaft (10). A lead screw (12) is rotatably installed in the threaded groove (11). The lead screw (12) is threadedly connected to the threaded groove (11). The bottom end of the lead screw (12) extends outside the threaded groove (11). An adjusting handle (13) is fixedly installed at the top end of the rotating shaft (10). Guide rods (14) are fixedly installed in both sliding grooves (7). The two sliding plates (8) are slidably sleeved on the corresponding guide rods (14). Both of the two sliding plates (8) have ball bearings nested on opposite sides, and the two ball bearings roll into contact with the inner wall of the corresponding sliding groove (7). The top of the movable seat (4) has an arc-shaped groove, and the bottom end of the lead screw (12) has an arc-shaped structure, extending into the arc-shaped groove and contacting the inner wall of the arc-shaped groove. An annular block is fixedly fitted on the rotating shaft (10) in the mounting hole (9), and an annular groove is provided on the inner wall of the mounting hole (9). The annular block is rotatably installed in the annular groove. Two L-shaped limiting rods are fixedly installed on the top inner wall of the cavity (2), and the lead screw (12) is located between the two L-shaped limiting rods. Limiting grooves are provided on both sides of the lead screw (12), and the ends of the two L-shaped limiting rods that are close to each other are slidably installed in the corresponding limiting grooves. The drawbacks are: firstly, multiple hang tags are easily stacked during the tag feeding process of this type of single-tag barcode printer, so only the hang tag on top can be printed, while the hang tags below cannot be printed, resulting in a missing print problem; secondly, this type of single-tag barcode printer can only perform ribbon printing. Utility Model Content

[0003] Design Objective: To overcome the shortcomings of the prior art, this design presents a single-tag RFID printer, comprising a ribbon printer and an RFID reader. The ribbon printer includes a tag printing area and a tag stacking area. The tag printing area is equipped with a ribbon unwinding roller, a ribbon take-up roller, and a ribbon printhead, arranged in an inverted triangle. The printhead is located below the ribbon unwinding and take-up rollers. A ribbon roll is mounted on the take-up roller, and the ribbon in the roll travels past the printhead and is then wound onto the take-up roller. The tag stacking area includes a tag stacking conveyor, on which multiple tags are stacked on the conveyor belt. Each tag contains an embedded RFID tag. The tags are conveyed from the tag stacking area into the tag printing area by the conveyor belt. Tags entering the tag printing area are then stacked on the ribbon printing area. The tags are conveyed by a conveyor roller and pass through a ribbon printhead. The ribbon printhead can perform online thermal transfer on the passing tags via the moving ribbon. The output end of the tag stacking conveyor is equipped with a tag output device. The mounting plate of the tag output device is positioned directly above the conveyor belt. The lower end of the mounting plate is equipped with an inclined metal plate via multiple mounting columns. The inclined surface of the lower end of the metal plate forms a guide convergence channel with the conveyor surface of the conveyor belt. The height of the tag inlet in the guide convergence channel is greater than the thickness of two tags, and the height of the tag outlet in the guide convergence channel matches the thickness of a single tag. The width of the metal plate is greater than the width of the tag. An RFID reader / writer antenna is installed in the tag printing area and is located between the tag output device and the ribbon printhead. The RFID reader / writer can write data to each passing tag through the RFID reader / writer antenna.

[0004] Preferably, the metal plate is composed of a first guide metal plate, a second guide metal plate, a third guide metal plate, and a fourth guide metal plate. The first guide metal plate, the second guide metal plate, the third guide metal plate, and the fourth guide metal plate are respectively installed sequentially from front to back on the lower end of the mounting plate via mounting columns. The lower inclined surface formed by the first guide metal plate, the second guide metal plate, the third guide metal plate, and the fourth guide metal plate together forms a guide convergence channel with the conveying surface of the conveyor belt. The first guide metal plate is located at the outlet end of the guide convergence channel, and the fourth guide metal plate is located at the inlet end of the guide convergence channel. A first gap is left between the first guide metal plate and the second guide metal plate, a second gap is left between the second guide metal plate and the third guide metal plate, and a third gap is left between the third guide metal plate and the fourth guide metal plate.

[0005] Preferably, the lower end surface of the outer side of the first guide metal plate is a plane, and the lower end surface of the outer side of the fourth guide metal plate is an arc-shaped surface.

[0006] Preferably, the system also includes a lifting platform, which comprises a fixed base, a mounting base, a base, two guide rods, and a threaded rod. The fixed base and the mounting base are fixedly installed on the inner wall of the ribbon printer in the tag stacking area, with the mounting base directly above the fixed base. The upper end face of the mounting base has a threaded rod through-hole, and the guide rod through-holes penetrate the upper and lower end faces of the mounting base. The upper end face of the mounting base has two guide rod through-holes, penetrating both the upper and lower end faces of the mounting base. The threaded rod through-hole is located between the two guide rod through-holes. The upper end face of the fixed base has a threaded hole. The threaded hole has its center line of symmetry coinciding with the center line of symmetry of the threaded rod through hole. A threaded rod is screwed into the threaded hole. The upper end of the threaded rod passes through the threaded rod through hole and extends out of the upper end face of the mounting base. The lower end of the threaded rod is movably connected to the upper end of the base. A guide rod is inserted into each of the two guide rod through holes, and the lower end faces of the two guide rods are fixedly connected to the upper end face of the base. The two guide rods are located on both sides of the mounting base. One end of the mounting plate is fixedly connected to the outer side of the base. The base is located directly above the conveyor belt conveying surface.

[0007] Preferably, the lower end of the threaded rod is provided with a circular protrusion, the center line of symmetry of the circular protrusion coincides with the center line of symmetry of the threaded rod, and the diameter of the circular protrusion is larger than the diameter of the threaded rod. The upper end face of the base is provided with a circular groove, and the size of the circular groove matches the size of the circular protrusion. After the circular protrusion and the circular groove are engaged, the threaded rod is movably connected to the base through the cover of an annular cover plate. The inner diameter of the annular cover plate is larger than the diameter of the threaded rod and smaller than the diameter of the circular protrusion. The outer diameter of the annular cover plate is larger than the diameter of the circular groove.

[0008] Preferably, the upper surface of the base is provided with multiple screw holes arranged around a circular groove, and the annular cover plate is composed of two semi-annular cover plates, and the upper surface of the semi-annular cover plate is provided with several screw through holes that pass through the upper and lower surfaces of the semi-annular cover plate. After the screw through holes are aligned with the corresponding screw holes, the semi-annular cover plate is fixedly connected to the base by screws.

[0009] Preferably, in the tag stacking and conveying device, the drive shaft and the driven shaft are respectively mounted between two side panels of the frame in the ribbon printer via two bearings. A synchronous pulley is fixedly installed on the shaft of the drive shaft and the drive shaft is driven by a motor. A synchronous pulley is fixedly installed on the shaft of the driven shaft. A synchronous belt is fitted between the synchronous pulley and the synchronous pulley. The synchronous belt is a conveyor belt and a tag baffle is provided on each side of the conveyor belt. The distance between the two tag baffles matches the width of the tag.

[0010] Preferably, the width of the conveyor belt is two-thirds to three-quarters of the width of the tag.

[0011] Preferably, a stacking baffle is provided on each side of the conveyor belt and the stacking baffle is located behind the corresponding tag baffle.

[0012] Preferably, the ribbon printer is equipped with an RFID reader / writer antenna at its exit point.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] Firstly, the ribbon printer includes a tag printing area and a tag stacking area. The tag printing area is equipped with a ribbon unwinding roller, a ribbon take-up roller, and a ribbon print head, arranged in an inverted triangle. The print head is located below the ribbon unwinding and take-up rollers. A ribbon roll is mounted on the take-up roller, and the ribbon in the roll travels past the print head and is then wound onto the take-up roller. The tag stacking area is equipped with a tag stacking conveyor, and the conveyor... Multiple hang tags are stacked on the conveyor surface of the belt, each tag containing an embedded RFID tag. The hang tags are conveyed from the stacking area to the printing area, and then, along with the conveyor rollers located in the printing area, pass through a ribbon printer. The ribbon printer performs online thermal transfer printing on the passing hang tags via the moving ribbon. The output end of the hang tag stacking conveyor is equipped with a hang tag output device, and the mounting plate of this device is positioned directly above the conveyor belt. The lower end of the mounting plate is fitted with an inclined metal plate via multiple mounting posts. The inclined surface of the lower end of the metal plate forms a guide convergence channel with the conveyor surface of the conveyor belt. The height of the tag inlet in the guide convergence channel is greater than the thickness of two tags, and the height of the tag outlet in the guide convergence channel matches the thickness of a single tag. The width of the metal plate is greater than the width of the tag. An RFID reader / writer antenna is installed in the tag printing area and is located between the tag output device and the ribbon print head. The RFID reader / writer can write data to each passing tag through the RFID reader / writer antenna. This single-tag RFID printer can simultaneously print and input data for single tags embedded with RFID tags online. Furthermore, single tags can achieve ribbon printing and RFID data input (dual printing) without retraction during the printing process. This not only improves the efficiency of dual printing with a single-tag RFID printer but also ensures the quality of dual printing of single tags embedded with RFID tags.

[0015] Secondly, the metal plate is composed of a first guide metal plate, a second guide metal plate, a third guide metal plate, and a fourth guide metal plate. The first, second, third, and fourth guide metal plates are sequentially installed from front to back on the lower end of the mounting plate via mounting columns. The inclined surface at the lower end formed by the first, second, third, and fourth guide metal plates together forms a guiding convergence channel with the conveying surface of the conveyor belt. The first guide metal plate is located at the outlet end of the guiding convergence channel, and the fourth guide metal plate is located at the inlet end of the guiding convergence channel. A first gap is left between the first guide metal plate and the second guide metal plate, a second gap is left between the second guide metal plate and the third guide metal plate, and a third gap is left between the third guide metal plate and the fourth guide metal plate. The convergence channel (the lower inclined surface formed by the first guide metal plate, the second guide metal plate, the third guide metal plate, and the fourth guide metal plate together forms a guide convergence channel with the conveyor surface of the conveyor belt; the first guide metal plate is located at the outlet end of the guide convergence channel, and the fourth guide metal plate is located at the inlet end of the guide convergence channel) ensures that the hangtag can be output single by single. Simultaneously, the first guide metal plate... The metal plate system, consisting of a first guide plate, a second guide plate, a third guide plate, and a fourth guide plate, allows for the simultaneous conveying of one hangtag through the metal plate while the next hangtag waits below it (at least its front end is below the metal plate). The hangtag following that waits at the entrance of the guide convergence channel (at least its front end is at the entrance of the guide convergence channel). This design minimizes the risk of hangtag jams during the sequential conveying of hangtags by a single RFID printer. Furthermore, each hangtag passes through the printing area at the same speed and time interval, further improving the printing efficiency. The printing quality is improved, and each tag passes through the tag printing area one by one at the same speed and time interval, avoiding the problem of RFID reading and writing antennas simultaneously recording data on two tags that are too close together. In addition, there is a first gap between the first guide metal plate and the second guide metal plate, a second gap between the second guide metal plate and the third guide metal plate, and a third gap between the third guide metal plate and the fourth guide metal plate. The gap setting can prevent the front end of the tag waiting under the metal plate from being squeezed and causing local wrinkles at the front end, thus affecting the quality of the tag.The setting of the first, second, and third gaps allows the front ends of tags of different thicknesses to automatically select the matching gap to wait (tags in the same batch have basically the same thickness, and they will wait at the same gap; however, tags from different batches may have different thicknesses, and multiple batches of tags with different thicknesses will automatically select the appropriate gap to wait. For example, if the tag thickness of Company A is A, the same tags in Company A's batch will wait at the second gap during the output process; if the tag thickness of Company B is B, the same tags in Company B's batch will wait at the third gap during the output process). This improves the applicability of a single-tag RFID printer.

[0016] Thirdly, the lifting platform includes a fixed seat, a mounting seat, a base, two guide rods, and a threaded rod. The fixed seat and the mounting seat are fixedly installed on the inner wall of the ribbon printer in the tag stacking area, with the mounting seat directly above the fixed seat. The upper end face of the mounting seat has a threaded rod through-hole, and the guide rod through-holes penetrate the upper and lower end faces of the mounting seat. The upper end face of the mounting seat has two guide rod through-holes, penetrating both the upper and lower end faces of the mounting seat. The threaded rod through-hole is located between the two guide rod through-holes. The upper end face of the fixed seat has a threaded hole, penetrating both the upper and lower end faces of the fixed seat. The symmetrical center line of the threaded hole coincides with the symmetrical center line of the threaded rod through-hole. The mounting plate is assembled with a threaded rod screwed into the threaded hole. The upper end of the threaded rod extends out of the upper surface of the mounting base through the threaded rod through hole, and the lower end of the threaded rod is movably connected to the upper end of the base. A guide rod is inserted into each of the two guide rod through holes, and the lower end faces of the two guide rods are fixedly connected to the upper surface of the base. The two guide rods are located on both sides of the fixed base. One end of the mounting plate is fixedly connected to the outer side of the base, and the base is located directly above the conveyor belt conveying surface. This type of RFID printer for single tags can print tags of different thicknesses, has good printing applicability, and facilitates adjustment of the distance between the tag output device and the tag stacking conveyor device.

[0017] Fourth, the ribbon printer is equipped with an RFID read / write antenna at its exit, which enables the single-tag RFID printer to re-examine the data in the RFID tag, further improving the effectiveness of double printing on a single tag. Attached Figure Description

[0018] Figure 1 This is a side view of an RFID printer for a single tag.

[0019] Figure 2 yes Figure 1 An enlarged view of circle A in the image. Detailed Implementation

[0020] Example 1: Refer to Appendix Figures 1-2 An RFID printer for single tags includes a ribbon printer 1 and an RFID reader / writer. The ribbon printer 1 has a tag printing area 2 and a tag stacking area 3. The tag printing area 2 is equipped with a ribbon unwinding roller 21, a ribbon rewinding roller 22, and a ribbon print head 23, which are arranged in an inverted triangle. The ribbon print head 23 is located below the ribbon unwinding roller 21 and the ribbon rewinding roller 22. 2. A ribbon roll is installed on the print head 23, and the ribbon in the roll travels past the print head 23 and is wound onto the ribbon take-up roller 22. The tag stacking area 3 is equipped with a tag stacking conveyor 4, and multiple tags are stacked on the conveyor surface of the conveyor belt in the tag stacking conveyor 4. Each tag has an embedded RFID tag. The tags can enter the tag printing area 2 from the tag stacking area 3 under the conveyor belt's transport. Tags entering the tag printing area 2 are then transported by the conveyor roller 24 located in the tag printing area 2. The ribbon is fed through the printhead 23, which performs online thermal transfer on the passing tags via the moving ribbon. The output end of the tag stacking conveyor 4 is equipped with a tag output device 5. The mounting plate 51 of the tag output device 5 is positioned directly above the conveyor belt. The lower end of the mounting plate 51 is fitted with an inclined metal plate 53 via multiple mounting posts 52. The inclined surface of the lower end of the metal plate 53 forms a guide convergence channel 6 with the conveying surface of the conveyor belt. The height of the tag inlet in the guide convergence channel 6 is greater than the thickness of two tags, and the height of the tag outlet in the guide convergence channel 6 matches the thickness of a single tag. The width of the metal plate 53 is greater than the width of the tag. The tag printing area 2 is equipped with an RFID reader / writer antenna 7, which is located between the tag output device 5 and the ribbon printhead 23. The RFID reader / writer can write data to each passing tag through the RFID reader / writer antenna 7.

[0021] The metal plate 53 is composed of a first guide metal plate 531, a second guide metal plate 532, a third guide metal plate 533, and a fourth guide metal plate 534. The first guide metal plate 531, the second guide metal plate 532, the third guide metal plate 533, and the fourth guide metal plate 534 are respectively installed from front to back on the lower end of the mounting plate 51 via mounting posts 52, and the lower end formed by the first guide metal plate 531, the second guide metal plate 532, the third guide metal plate 533, and the fourth guide metal plate 534 is inclined. The inclined plane and the conveying surface of the conveyor belt form a guiding convergence channel 6. The first guide metal plate 531 is located at the outlet end of the guiding convergence channel 6, and the fourth guide metal plate 534 is located at the inlet end of the guiding convergence channel 6. A first gap 535 is left between the first guide metal plate 531 and the second guide metal plate 532, a second gap 536 is left between the second guide metal plate 532 and the third guide metal plate 533, and a third gap 537 is left between the third guide metal plate 533 and the fourth guide metal plate 534.

[0022] The lower outer surface of the first guide metal plate 531 is flat, while the lower outer surface of the fourth guide metal plate 534 is curved. A lifting platform 8 is also included, comprising a fixed base 81, a mounting base 82, a base 83, two guide rods 84, and a threaded rod 85. The fixed base 81 and mounting base 82 are fixedly mounted on the inner wall of the ribbon printer in the tag stacking area 3, with the mounting base 82 directly above the fixed base 81. The upper surface of the mounting base 82 has a threaded rod through-hole, and the guide rod through-hole passes through both the upper and lower end faces of the mounting base 82. The upper surface of the mounting base 82 has two guide rod through-holes, and the threaded rod through-hole is located between the two guide rod through-holes. The upper surface of the fixed base 81 has a threaded hole, and the threaded hole passes through the upper and lower end faces of the mounting base 85. The center line of the threaded hole on the upper and lower end faces of the fixed base 81 coincides with the center line of the threaded rod through hole. A threaded rod 85 is screwed into the threaded hole. The upper end of the threaded rod 85 extends out of the upper end face of the mounting base 82 through the threaded rod through hole. The lower end of the threaded rod 85 is movably connected to the upper end of the base 83. A guide rod 84 is inserted into each of the two guide rod through holes, and the lower end faces of the two guide rods 84 are fixedly connected to the upper end face of the base 83. The two guide rods 84 are located on both sides of the fixed base 81. One end of the mounting plate 51 is fixedly connected to the outer side of the base 83. The base 83 is located directly above the conveyor belt conveying surface.

[0023] The lower end of the threaded rod 85 is provided with a circular protrusion. The center line of symmetry of the circular protrusion coincides with the center line of symmetry of the threaded rod 85, and the diameter of the circular protrusion is larger than the diameter of the threaded rod 85. The upper end face of the base 83 has a circular groove, and the size of the circular groove matches the size of the circular protrusion. After the circular protrusion and the circular groove are engaged, the threaded rod 85 is movably connected to the base 83 through a cover plate. The inner diameter of the cover plate is larger than the diameter of the threaded rod 85 and smaller than the diameter of the circular protrusion. The outer diameter of the cover plate is larger than the diameter of the circular groove. When the threaded rod 85 is rotated, the circular protrusion rotates within the circular groove.

[0024] The upper surface of the base 83 is provided with multiple screw holes, which are arranged around a circular groove. The annular cover plate is composed of two semi-annular cover plates, and the upper surface of the semi-annular cover plate is provided with several screw through holes that pass through the upper and lower surfaces of the semi-annular cover plate. After the screw through holes are aligned with the corresponding screw holes, the semi-annular cover plate is fixedly connected to the base 83 by screws.

[0025] The drive shaft 41 and driven shaft 42 of the tag stacking conveyor 4 are respectively mounted between two side panels of the frame in the ribbon printer 1 via two bearings. A synchronous pulley 43 is fixedly mounted on the shaft of the drive shaft 41, and the drive shaft 41 is driven by a motor. A synchronous pulley 44 is fixedly mounted on the shaft of the driven shaft 42. A synchronous belt 45 is fitted between the synchronous pulleys 43 and 44. The synchronous belt 45 is a conveyor belt, and a tag baffle 46 is provided on each side of the conveyor belt. The distance between the two tag baffles 46 matches the width of the tag. The width of the conveyor belt is two-thirds to three-quarters of the width of the tag. A stacking baffle 47 is provided on each side of the conveyor belt, and the stacking baffle 47 is located behind the corresponding tag baffle 46. An RFID reader / writer antenna 9 is provided at the exit of the ribbon printer 1.

[0026] It should be understood that although the above embodiments provide a relatively detailed textual description of the design concept of this utility model, these textual descriptions are merely simple textual descriptions of the design concept of this utility model, and not limitations on the design concept of this utility model. Any combination, addition, or modification that does not exceed the design concept of this utility model shall fall within the protection scope of this utility model.

Claims

1. An RFID printer for single tags, comprising a ribbon printer (1) and an RFID reader / writer, wherein the ribbon printer (1) has a tag printing area (2) and a tag stacking area (3), wherein the tag printing area (2) is provided with a ribbon unwinding roller (21), a ribbon rewinding roller (22) and a ribbon print head (23), and the ribbon unwinding roller (21), the ribbon rewinding roller (22) and the ribbon print head (23) are arranged in an inverted triangle, wherein the ribbon print head (23) is located below the ribbon unwinding roller (21) and the ribbon rewinding roller (22), wherein a ribbon roll is mounted on the ribbon rewinding roller (22) and the ribbon in the ribbon roll travels through the ribbon roll. After the print head (23) is attached, it is wound onto the carbon ribbon take-up roller (22). The tag stacking area (3) is equipped with a tag stacking conveyor (4), and multiple tags are stacked on the conveyor surface of the conveyor belt in the tag stacking conveyor (4). Each tag is embedded with an RFID tag. The tags can enter the tag printing area (2) from the tag stacking area (3) under the conveyor belt. The tags entering the tag printing area (2) pass through the carbon ribbon print head (23) under the conveyor roller (24) set in the tag printing area (2). The carbon ribbon print head (23) can perform online thermal transfer on the passing tags through the moving carbon ribbon. Its characteristics are: The output end of the label stack conveying device (4) is provided with a label one-by-one output device (5), the mounting plate (51) in the label one-by-one output device (5) is arranged directly above the conveying belt, the lower end of the mounting plate (51) is provided with an inclined metal plate (53) through a plurality of mounting columns (52), the lower end inclined surface of the metal plate (53) and the conveying surface of the conveying belt form a guide converging channel (6), the height of the label inlet in the guide converging channel (6) is greater than the thickness of two labels, and the height of the label outlet in the guide converging channel (6) matches the thickness of a single label; the width of the metal plate (53) is greater than the width of the label, the label printing area (2) is provided with an RFID read-write antenna (7), and the RFID read-write antenna (7) is located between the label one-by-one output device (5) and the carbon ribbon printing head (23), and the RFID reader can write data to the label passing one by one through the RFID read-write antenna (7).

2. The single hangtag RFID printer of claim 1, characterized by: The metal plate (53) is composed of a first guide metal plate (531), a second guide metal plate (532), a third guide metal plate (533) and a fourth guide metal plate (534), the first guide metal plate (531), the second guide metal plate (532), the third guide metal plate (533) and the fourth guide metal plate (534) are sequentially mounted on the lower end of the mounting plate (51) from front to back through the mounting column (52), and the lower end inclined surface formed by the first guide metal plate (531), the second guide metal plate (532), the third guide metal plate (533) and the fourth guide metal plate (534) together forms a guide converging channel (6) with the conveying surface of the conveying belt, the first guide metal plate (531) is located at the outlet end of the guide converging channel (6), the fourth guide metal plate (534) is located at the inlet end of the guide converging channel (6), a first gap (535) is left between the first guide metal plate (531) and the second guide metal plate (532), a second gap (536) is left between the second guide metal plate (532) and the third guide metal plate (533), and a third gap (537) is left between the third guide metal plate (533) and the fourth guide metal plate (534).

3. The single hangtag RFID printer of claim 2, wherein: The lower end surface of the outer side of the first guide metal plate (531) is a plane, and the lower end surface of the outer side of the fourth guide metal plate (534) is an arc surface.

4. The single hangtag RFID printer of claim 1, wherein: The lifting platform (8) comprises a fixed seat (81), a mounting seat (82), a base (83), two guide rods (84) and a threaded rod (85), the fixed seat (81) and the mounting seat (82) are fixedly installed on the inner wall surface of the carbon tape printer located in the hanging plate stacking area (3), the mounting seat (82) is located directly above the fixed seat (81), a threaded rod through hole is formed in the upper end surface of the mounting seat (82), and guide rod through holes are formed in the upper and lower end surfaces of the mounting seat (82) and penetrate the upper and lower end surfaces; the threaded rod through hole is located between the two guide rod through holes, a threaded hole is formed in the upper end surface of the fixed seat (81) and penetrates the upper and lower end surfaces of the fixed seat (81), the center line of the threaded hole coincides with the center line of the threaded rod through hole, the threaded rod (85) is rotatably arranged in the threaded hole, the upper end of the threaded rod (85) passes through the threaded rod through hole and protrudes out of the upper end surface of the mounting seat (82), the lower end of the threaded rod (85) is movably connected with the upper end of the base (83), one guide rod (84) is respectively inserted into each of the two guide rod through holes, and the lower end surfaces of the two guide rods (84) are fixedly connected with the upper end surface of the base (83), and the two guide rods (84) are located on the two sides of the fixed seat (81); one end of the mounting plate (51) is fixedly connected with the outer side surface of the base (83), and the base (83) is located directly above the conveying belt conveying surface.

5. The single hangtag RFID printer of claim 4, wherein: The lower end of the threaded rod (85) is provided with a circular protrusion, the center line of the circular protrusion coincides with the center line of the threaded rod (85), and the diameter of the circular protrusion is greater than the diameter of the threaded rod (85); a circular recess is formed in the upper end surface of the base (83), and the size of the circular recess matches the size of the circular protrusion; the threaded rod (85) is movably connected with the base (83) through the covering of the annular cover plate after the circular protrusion and the circular recess are matched, the inner hole diameter of the annular cover plate is greater than the diameter of the threaded rod (85) and smaller than the diameter of the circular protrusion, and the outer circle diameter of the annular cover plate is greater than the diameter of the circular recess.

6. The single hangtag RFID printer of claim 5, characterized by: The upper end surface of the base (83) is provided with a plurality of screw holes, and the plurality of screw holes are arranged around the circular recess; the annular cover plate is composed of two half annular cover plates, the upper end surface of each half annular cover plate is provided with a plurality of screw through holes penetrating the upper and lower end surfaces of the half annular cover plate, and the half annular cover plates are fixedly connected with the base (83) through screws after the screw through holes and the corresponding screw holes are one-to-one matched.

7. The single hangtag RFID printer of claim 1, wherein: The driving shaft (41) and the driven shaft (42) in the label stack conveying device (4) are respectively installed between two side panels of the frame in the carbon ribbon printer (1) through two bearings, a synchronous pulley one (43) is fixedly installed on the shaft body of the driving shaft (41) and the driving shaft (41) is driven by a motor, a synchronous pulley two (44) is fixedly installed on the shaft body of the driven shaft (42), a synchronous belt (45) is sleeved between the synchronous pulley one (43) and the synchronous pulley two (44), the synchronous belt (45) is a conveying belt and one label baffle (46) is arranged on each side of the conveying belt, the distance between the two label baffles (46) matches the width of the label.

8. The single hangtag RFID printer of claim 7, characterized by: The width of the conveying belt is two-thirds to four-thirds of the width of the label.

9. The single hangtag RFID printer of claim 7, wherein: One stack baffle (47) is arranged on each side of the conveying belt and the stack baffles (47) are located at the rear sides corresponding to the label baffles (46).

10. The single hangtag RFID printer of claim 1, characterized by: An RFID read-write antenna one (9) is arranged at the outlet of the carbon ribbon printer (1).

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